In the following cases, operation of the BSD/RCTA approach indicator light and the warning buzzer may be delayed or the system may fail to issue these warnings.
During reversing, operation of the BSD/ RCTA approach indicator light and the warning buzzer may be delayed or the system may fail to issue these warnings under the following conditions.

The BSD/RCTA approach indicator light may illuminate when driving close to solid objects on the road or road side (such as guardrails, tunnels and sidewalls).
The BSD/RCTA approach indicator light may flash when turning at an intersection in urban areas or a multilane intersection.
The BSD/RCTA approach indicator light may flash and the warning buzzer may sound if a building or a wall exists in the reversing direction
In the following cases, the system may detect a vehicle driving two lanes away from your vehicle.
BSD/RCTA approach indicator lightGeneral diagnostic table Inspection
FRONT SUSPENSION > General Diagnostic TableINSPECTION1. IMPROPER VEHICLE POSTURE OR IMPROPER WHEEL ARCH HEIGHTPossible causeCorrective action(1) Permanent distortion or damage of the coil springReplace.(2) Rough operation of strut or shock absorberReplace.(3) Improper installation of strut or sho ...
Operation
VEHICLE DYNAMICS CONTROL (VDC) > VDC Sequence ControlOPERATION1. While the VDC sequence control is performed, the operation of the hydraulic unit can be checked using the brake tester or pressure gauge after the hydraulic unit solenoid valve is operated.2. VDC sequence control can be started by S ...
Electrical specification
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS) > Control Module I/O SignalELECTRICAL SPECIFICATION• Models without EyeSightNOTE:• Terminal numbers in VDCCM&H/U connector (on the control module side) are shown in the figure.• When the connector is removed from the VDCCM&H/U ...